function troca(nome, numero, exibe) {
	var block = "block";
	if(!exibe) {
		block = "none";
	}
	document.getElementById(nome+numero).style.display = block;
}

function esconde() {
	var i = 1;
	while(document.getElementById("menu"+i)) {
		document.getElementById("menu"+i).style.display = "none";
		i++;
	}
}